	(1)	(2)	(3)	(4)
VARIABLES	column 1	column 2	column 3	column 4
				
hr	-2.20324***	0.37252	1.47234***	1.52469***
	[0.77234]	[0.32933]	[0.46466]	[0.48148]
				
Observations	11,348	11,348	22,696	22,696
Mean dep. variable	17.51	44.14	30.82	30.82
Number of unique_id			11,348	11,348
Robust standard errors in brackets				
*** p<0.01, ** p<0.05, * p<0.1				
